Kärcher HDS 7/11-4 M Bedienungsanleitung Seite 25

Engine indicator lamp
1x blinking
– Contactor error
 Set the appliance switch to "0/OFF".
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
2x blinking
– Engine overload/overheat
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
3x blinking
– Fault in the voltage supply.
 Check main connections and mains fuse.
4x blinking
– Excessive power consumption.
 Check main connections and mains fuse.
 Inform Customer Service.
Indicator lamp burner failure
1x blinking
– The exhaust temperature limiter has been trig-
gered.
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
2x blinking (option)
– The flame sensor turned the burner off.
 Inform Customer Service.
3x blinking
– System care detection defective
 Inform Customer Service.
4x blinking
– Temperature sensor defective
 Inform Customer Service.
Indicator lamp service
– Service interval
 Perform service work.
Fuel indicator lamp glows
– Fuel tank empty.
 Refill fuel.
Indicator lamp system care is illuminated
Note: Burner can operate 5 more hours.
– System care tank is empty, due to technical rea-
sons a remainder stays in the tank.
 Refill system care.
Indicator lamp system care is blinking
Note: Burner operation no longer possible.
– System care container is empty.
 Refill system care.
Detergent indicator light 1 is illuminated
(HDS 12/18, HDS 13/20 only)
– Detergent tank 1 is empty.
 Refill detergent.
Detergent indicator light 2 is illuminated
(HDS 12/18, HDS 13/20 only)
– Detergent tank 2 is empty.
 Refill detergent.
Appliance is not running
– No power
 Check power connection/conduit.
Device is not building up pressure
– Air within the system
Vent pump:
 Set dosing value for detergent to "0".
 With open hand spray gun turn device on and off
multiple times with the device switch.
 Open and close the pressure/quantity regulation at
the pump unit with the hand spray gun open.
Note: By dismantling the high pressure hose from the
high pressure connection the venting process is accel-
erated.
 If detergent tank is empty, refill.
 Check connections and conduits.
– Pressure is set to MIN
 Set pressure to MAX.
– Sieve in the water connection is dirty
 Clean sieve.
 Clean the fine filter; replace it, if necessary.
– Amount of water supply is too low.
 Check water supply level (refer to technical data).
Device leaks, water drips from the bottom of
– Pump leaky
Note: 3 drops/minute are allowed.
 With stronger leak, have device checked by cus-
tomer service.
Device turns on and off while hand spray gun
– Leak in the high pressure system
 Check high pressure system and connections for
tightness.
Device is not sucking in detergent
 Leave device running with open detergent dosage
valve and closed water supply, until the swimmer
tank is sucked empty and the pressure falls to "0".
 Open the water supply again.
If the pump still is not sucking in any detergent, it could
be because of the following reasons:
– Filter in the detergent suck hose dirty
 Clean filter.
– Backflow valve stuck
 Remove the detergent hose and loosen the back-
flow valve using a blunt object.
Burner does not start
– System care container is empty.
 Refill system care.
– Fuel tank empty.
 Refill fuel.
– 7
EN
the device
is closed
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